CN1512610A - Method for producing thin lithium ion accumulator electrode - Google Patents
Method for producing thin lithium ion accumulator electrode Download PDFInfo
- Publication number
- CN1512610A CN1512610A CNA021591466A CN02159146A CN1512610A CN 1512610 A CN1512610 A CN 1512610A CN A021591466 A CNA021591466 A CN A021591466A CN 02159146 A CN02159146 A CN 02159146A CN 1512610 A CN1512610 A CN 1512610A
- Authority
- CN
- China
- Prior art keywords
- lithium
- manufacture method
- thin electrodes
- ions battery
- pole plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
A manufacturing method for thin electrodes of Li ion batteries includes the following steps: 1. regulating the pressure and shaft speed of a roller press, 2. putting the present 140um-160um pole plate under the roller for rolling, reduction of the pole plate thickness shortens the distance between positive and negative pole plates to reduce internal resistance and increasing of the plate area increases the reaction area of active substance and area of battery carrying current to increase the current density of the plate to realize high power discharge without changing battery capacitance and the plate matrix.
Description
Technical field
The invention belongs to the lithium-ions battery technical field, particularly a kind of lithium-ions battery thin electrodes manufacture method.
Background technology
Present known lithium-ions battery thickness of electrode is 140 μ m to 160 μ m, and the lithium-ions battery self that adopts this thickness pole plate to produce only has following continuous discharge ability of 3 multiplying powers and the following intermittent discharge ability of 5 multiplying powers.Can not satisfy powerful continuous discharge ability and powerful intermittent discharge ability.
Summary of the invention
The present invention provides a kind of lithium-ions battery thin electrodes manufacture method for solving the problem that prior art exists.
The purpose of this invention is to provide a kind of high-rate discharge ability that has, improve the power output of battery, satisfy the lithium-ions battery thin electrodes manufacture method of the demand of high-power electric appliance.
The present invention adopts following technical scheme:
Lithium-ions battery thin electrodes manufacture method, the pole plate with existing 140 μ m to the 160 μ m of roller press roll extrusion is characterized in that lithium-ions battery thin electrodes manufacture method comprises following technical process:
(1) pressure and the last item speed of adjustment roller press;
(2) pole plate with 140 μ m to 160 μ m places roller press to carry out roll extrusion.
The present invention can also adopt following technical measures:
Above-mentioned lithium-ions battery thin electrodes manufacture method is characterized in the pressure of roller press is adjusted to 25 to 35 tons.
Above-mentioned lithium-ions battery thin electrodes manufacture method is characterized in the last item speed of roller press is adjusted to 4mm to 6mm.
Above-mentioned lithium-ions battery thin electrodes manufacture method is characterized in thickness being that the pole plate of 140 μ m to 160 μ m is rolled into 120 μ m to 150 μ m.
Above-mentioned lithium-ions battery thin electrodes manufacture method is characterized in thickness being that the pole plate of 120 μ m to 150 μ m is rolled into 100 μ m to 140 μ m.
Above-mentioned lithium-ions battery thin electrodes manufacture method is characterized in thickness being that the pole plate of 100 μ m to 140 μ m is rolled into 80 μ m to 130 μ m.
Advantage that the present invention has and good effect:
Lithium-ions battery thin electrodes manufacture method, because existing 140 μ m to 160 μ m pole plates are improved, make thickness of electrode be reduced to 80 μ m to 130 μ m, strengthened electrode area simultaneously, under the constant situation of battery capacity and Polar plate matrix, the distance between positive/negative plate has been shortened in the reduction of electrode thickness, has reduced internal resistance; The increasing of pole plate area has strengthened the response area of active material and the area of battery loaded current, has increased the current density of pole plate; The reduction of internal resistance and the increase of plate current density have realized the purpose of battery high-multiplying power discharge.
Embodiment
For further understanding summary of the invention of the present invention, several effects of characteristics, enumerate following examples now and be described in detail as follows:
Lithium-ions battery thin electrodes manufacture method, under the stopped status, the pressure to 30 of adjustment ton, the last item speed of regulating roller press are 4mm to 6mm; With thickness is that the pole plate of 140 μ m to 160 μ m places on the roller press, after the start pole plate is rolled into 120 μ m to 150 μ m at a slow speed; Continuing then thickness is that the pole plate of 120 μ m to 150 μ m is rolled into 100 μ m to 140 μ m; Same quadrat method is that the pole plate of 100 μ m to 140 μ m is rolled into 80 μ m to 130 μ m again with thickness.
Through above processes, can finish the overall process of lithium-ions battery thin electrodes manufacture method, be met the required lithium-ions battery thin electrodes of high power lithium battery.
Claims (6)
1, a kind of lithium-ions battery thin electrodes manufacture method, the pole plate with existing 140 μ m to the 160 μ m of roller press roll extrusion is characterized in that lithium-ions battery thin electrodes manufacture method comprises following technical process:
(1) pressure and the last item speed of adjustment roller press;
(2) pole plate with 140 μ m to 160 μ m places roller press to carry out roll extrusion.
2, lithium-ions battery thin electrodes manufacture method according to claim 1 is characterized in that: the pressure of roller press is adjusted to 25 to 35 tons.
3, lithium-ions battery thin electrodes manufacture method according to claim 1 is characterized in that: the last item speed of roller press is adjusted to 4mm to 6mm.
4, lithium-ions battery thin electrodes manufacture method according to claim 1 is characterized in that: with thickness is that the pole plate of 140 μ m to 160 μ m is rolled into 120 μ m to 150 μ m.
5, lithium-ions battery thin electrodes manufacture method according to claim 1 is characterized in that: with thickness is that the pole plate of 120 μ m to 150 μ m is rolled into 100 μ m to 140 μ m.
6, lithium-ions battery thin electrodes manufacture method according to claim 1 is characterized in that: with thickness is that the pole plate of 100 μ m to 140 μ m is rolled into 80 μ m to 130 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021591466A CN1512610A (en) | 2002-12-30 | 2002-12-30 | Method for producing thin lithium ion accumulator electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021591466A CN1512610A (en) | 2002-12-30 | 2002-12-30 | Method for producing thin lithium ion accumulator electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1512610A true CN1512610A (en) | 2004-07-14 |
Family
ID=34237334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021591466A Pending CN1512610A (en) | 2002-12-30 | 2002-12-30 | Method for producing thin lithium ion accumulator electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1512610A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100483837C (en) * | 2004-07-28 | 2009-04-29 | 比亚迪股份有限公司 | Secondary lithium ion battery in large multiplying power |
| CN117619903A (en) * | 2024-01-25 | 2024-03-01 | 邢台纳科诺尔精轧科技股份有限公司 | Rolling control method and device |
-
2002
- 2002-12-30 CN CNA021591466A patent/CN1512610A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100483837C (en) * | 2004-07-28 | 2009-04-29 | 比亚迪股份有限公司 | Secondary lithium ion battery in large multiplying power |
| CN117619903A (en) * | 2024-01-25 | 2024-03-01 | 邢台纳科诺尔精轧科技股份有限公司 | Rolling control method and device |
| CN117619903B (en) * | 2024-01-25 | 2024-03-29 | 邢台纳科诺尔精轧科技股份有限公司 | Rolling control method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110010844B (en) | Grading type calendering molding method for pre-lithium cathode | |
| AU2019443048B2 (en) | Lithium ion battery with high capacity retention rate, and preparation method and charging and discharging methods therefor | |
| CN207265160U (en) | A kind of device for continuously preparing ultra-thin complex lithium band | |
| CN110620211A (en) | High-energy-density lithium ion battery and preparation method thereof | |
| CN111430675A (en) | Preparation method and application of lithium metal negative plate | |
| CN113421996B (en) | Negative plate, battery and manufacturing method of negative plate | |
| CN114695968B (en) | Lithium ion battery with NP ratio less than 1 and preparation method thereof | |
| CN208722986U (en) | A kind of continuous prelithiation device of lithium ion cell electrode | |
| CN108188180B (en) | Double-lithium foil preparation device and preparation method | |
| CN103311553A (en) | Rechargeable battery and battery module | |
| CN114464953A (en) | Pre-sodium treatment method of diaphragm for sodium ion battery | |
| CN1588673A (en) | Method for producing liqium lithium ion cell for increasing product consistency and circulation life | |
| CN1512610A (en) | Method for producing thin lithium ion accumulator electrode | |
| CN113540400B (en) | Large-size cylindrical lithium ion secondary battery and positive and negative pole pieces thereof | |
| CN115498287A (en) | Pre-embedded lithium graphite negative pole piece and preparation method and application thereof | |
| CN210224192U (en) | Multi-pole pair cylindrical battery | |
| CN112736215A (en) | Process for improving rolling and sticking of polymer lithium ion battery negative plate | |
| CN2614389Y (en) | Winding type valve control sealed lead-acid accumulator | |
| CN205039204U (en) | Lithium ion battery pole piece and lithium ion battery | |
| CN212725375U (en) | Graphite electrode film-making rolling device | |
| CN1988219A (en) | Method for preparing battery electrode and its device | |
| CN220041914U (en) | Current collector, positive plate, pole core and battery | |
| CN111668456B (en) | External application type lead-carbon start-stop battery negative plate and preparation method thereof and battery | |
| CN113363502B (en) | Unequal-thickness grid and preparation method thereof | |
| CN219873591U (en) | Positive plate and battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |